Eaton B-Line Square Post Base ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$278.82
$28.61
B-Line B280ZN Eaton series strut fittings and accessories, 3.5" Height, 6" Length, 6" Width, 3.92lbs, Steel, Square post base, centered offset, Fits channel B22, Electro-plated

Eaton B-Line Square Post Base Centered Offset 3.5 Height 6 Length Steel Electro-plated B22 Channel

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Model: B280ZN
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$278.82
$28.61
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Eaton B-Line Square Post Base Centered Offset

Professional Strut Channel Support System Base

The Eaton B-Line Square Post Base Centered Offset delivers exceptional structural support and installation efficiency for vertical strut channel mounting applications. This steel square post base provides reliable structural support designed for professional electricians, mechanical contractors, and facility installers, offering the proven strength and versatile mounting capabilities that professionals trust from the industry leader in strut channel systems.

Professional Features & Benefits

Structural Performance

  • Steel Construction - Provides exceptional strength and durability for demanding structural support applications with reliable load-bearing capacity
  • 3.5 inch Height Design - Optimal vertical dimension for proper strut channel elevation and clearance requirements in professional installations
  • 6 x 6 inch Base Dimensions - Generous base footprint ensures stable mounting platform and excellent load distribution for structural integrity
  • 3.92 lb Weight Rating - Substantial construction weight indicates robust material thickness and structural reliability for professional applications

Installation & Mounting

  • Centered Offset Configuration - Precise positioning design allows for accurate strut channel alignment and professional installation standards
  • B22 Channel Compatibility - Engineered specifically for B-Line B22 strut channel systems ensuring perfect fit and optimal structural performance
  • Electro-plated Finish - Superior corrosion resistance and professional appearance for long-term durability in commercial and industrial environments

Technical Specifications

Height: 3.5 inches, Length: 6 inches, Width: 6 inches, Weight: 3.92 lbs, Material: Steel construction, Finish: Electro-plated coating, Channel Compatibility: Fits B22 strut channel, Design: Square post base with centered offset configuration, Application: Vertical strut channel mounting and support systems

Installation & Usage

  1. Position the square post base at the designated mounting location ensuring level placement and proper alignment
  2. Secure the base to the mounting surface using appropriate fasteners for the substrate material and load requirements
  3. Verify the centered offset positioning aligns with the intended strut channel installation path
  4. Insert the B22 strut channel into the post base connection ensuring proper engagement and structural integrity
  5. Check all connections for tightness and proper alignment before applying structural loads
  6. Inspect the installation for compliance with local building codes and structural requirements

Professional Applications

Ideal for:

  • Electrical Conduit Support - Vertical strut channel mounting for electrical conduit runs, junction boxes, and electrical equipment support systems
  • Mechanical Equipment Mounting - Base support for HVAC equipment, pumps, motors, and mechanical system components requiring elevated mounting
  • Structural Framing Systems - Foundation support for strut channel frameworks in commercial and industrial construction applications
  • Equipment Rack Support - Base mounting for electrical panels, control cabinets, and equipment rack installations
  • Cable Management Systems - Support base for cable tray systems, wire management, and telecommunications infrastructure
  • Seismic Bracing Applications - Structural base support for earthquake-resistant bracing systems and seismic restraint installations
  • Industrial Support Structures - Foundation mounting for process equipment, conveyor systems, and manufacturing support frameworks
  • Facility Infrastructure - Base support for lighting systems, security equipment, and building automation components

Electro-plated Steel Advantage

The electro-plated steel construction provides superior corrosion resistance and durability for demanding commercial and industrial environments. This advanced finish treatment ensures long-term structural integrity while maintaining professional appearance standards required for visible installations in commercial facilities.

Why Choose B-Line Quality?

B-Line's decades of structural support innovation and engineering excellence deliver the reliability and performance that professional contractors, electricians, and facility managers trust worldwide. Our commitment to load-rated safety standards, industry-standard compatibility, and proven structural performance makes B-Line the preferred choice for critical support system applications in commercial, industrial, and institutional facilities.

Manufacturer Resources

Product Specs

Certifications:
Not Applicable
For Channel Type:
Fits channel B22
Product Height:
3.5 in
Product Length Depth:
6 in
Product Weight:
3.92 lb
Product Width:
6 in
Department:
Electrical
Product Type:
Square post base, centered offset
Product Finish:
Electro-plated
Product Details:
Square post base, centered offset
Product Material:
Steel

B-LINE B280ZN – Frequently Asked Questions

1) Will the B-Line B280ZN post base work with B22 strut channel?
Yes. The B280ZN square post base is made for B22 channel, so a length of B22 strut sits directly on the base with no adapter. If the vertical run on your job is a different B-Line channel profile, this is the wrong base; match the base to the channel size you actually have before you order.
2) What is the footprint and height of the B-Line B280ZN square post base for laying out anchor points?
The base is 6 x 6 inches square and stands 3.5 inches high. Lay out on a 6 inch square and confirm you have that much clear floor or pad at each post location, plus 3.5 inches of vertical stack below where the channel starts. That height comes off your channel cut length, so measure your finished elevation from the top of the base, not the slab.
3) What does centered offset mean on a square post base like the B280ZN?
Centered offset describes where the channel sits relative to the base plate: the post is positioned centrally on the 6 x 6 inch plate rather than flush to one edge. Practically, that means your strut run lands over the middle of the footprint and the anchor pattern surrounds the post, so load from the post pushes down through the center of the plate instead of trying to tip it. If you need the channel tight against a wall or a curb edge, a centered base is not what you want.
4) Are anchors or bolts included with the B-Line B280ZN post base?
No. The base is supplied on its own. You buy the anchors to suit the substrate, concrete wedge or screw anchors into slab, through-bolts into steel deck, and you also supply the hardware that ties the B22 channel to the base. Size the anchors to your load and your inspector's requirement, not to the base.
5) Is an electro-plated post base OK outdoors or in a wet mechanical room?
Electro-plated steel is a light zinc coating, suited to dry interior and general commercial or industrial use. It is not the finish to pick for exterior rooftop duty, a wash-down area, or a corrosive process space. For those, specify a hot dip galvanized or stainless post base instead. Indoors, on an equipment pad or in an electrical room, the electro-plated B280ZN is the normal choice.
6) What do I order for a floor-mounted strut post supporting conduit or equipment?
For a vertical B22 post you need three things: the B280ZN base, the B22 channel cut to your finished height less the 3.5 inch base height, and anchors for the substrate. Add channel nuts and bolts for whatever you are hanging off the post. If the post is tall or carries side load, brace it back to structure; a single base plate is a foot, not a moment connection.
How fast can I get the B-LINE B280ZN delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the B-LINE B280ZN come with a warranty?
Absolutely. The B-LINE B280ZN is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the B-LINE B280ZN?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the B-LINE B280ZN from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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